# Spread 4

- **MSHA mine ID:** 1100012
- **Status:** Abandoned
- **Type / commodity:** Surface / Crushed, Broken Limestone NEC
- **Location:** Jo Daviess, IL
- **Operator:** Conmat Inc., dba Helm Materials
- **Controller:** Helm Group Inc
- **Public source rows linked:** 131
- **Source coverage:** 11 / 20
- **Generated:** 2026-10-13T11:26:59.401Z

## Current entity hierarchy

**Helm Group Inc (M01216) → Conmat Inc., dba Helm Materials (L15790) → Spread 4 (1100012)**

Current identity source: `msha-mines`. This is a current snapshot, not a historical claim.

## Controller and operator valid-time history

- **Dillon Patrick L → P L Dillon Limestone Inc:** 1950-01-01 through 1998-04-27; derived from co-tenure at mine 1100012; source `msha-controller-operator-history`.
- **Helm Group Inc → Conmat Inc., dba Helm Materials:** 1998-04-28 through current/open; derived from co-tenure at mine 1100012; source `msha-controller-operator-history`.

- History rows: 2
- Typed edges: 6
- Interval anomalies: 0
- Valid-time bounds: inclusive; date granularity; null end means open-ended in the upstream history row; not independent proof of present control.
- Transaction-time observation: 2026-10-13T11:19:05.459773+00:00.

## Assessment signals

1. **SAFETY — 0 since 2021:** Accidents and injuries 0 historical accident/injury rows; 0 coded fatalities and 0 lost days across the published record.
2. **COMPLIANCE — 2 since 2021:** Violations and penalties 11 violation rows across the full record; 1 carry an S&S flag and $1,083 appears in current assessed amounts.
3. **HEALTH — 0 samples:** Occupational health samples No published samples. 0 personal-sample rows have a published C/E ratio above 1; 0 noise rows have an action-level or PEL dose above 100%. These are separate measures, not a silica exceedance count. Silica results and sample status are shown separately.
4. **PRODUCTION — 0 tons:** Quarterly production and employment 175 employee hours and 1 summed average employees across reported subunits in the latest published quarter.
5. **LEGAL — 3 linked rows:** Contests, conferences and decisions 1 contested-violation rows, 1 civil-penalty docket/decision rows, and 1 conference records linked by issuance number.
6. **CONTRACTORS — 0 linked entities:** Contractors Contractors are linked through this mine’s violation or accident records. Their production and hours cover all their operations, so they are not included in this mine’s totals.
7. **INSPECTIONS — 1 since 2021:** Inspections 27 inspection events and 168 published inspection hours across the historical record.

## EIA annual operating context

No matched record in the 2024 EIA coal-public workbook. This may be inapplicable for a non-coal operation.

## Recent Title 30 crosswalk

Snapshot current through 2026-08-19.

- **30 CFR 56.14100 — Safety defects; examination, correction and records.** (3 retained recent rows) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14100
- **30 CFR 56.15001 — First-aid materials.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-N/section-56.15001
- **30 CFR 56.4201 — Inspection.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-C/section-56.4201
- **30 CFR 50.30 — Preparation and submission of MSHA Form 7000-2—Quarterly Employment and Coal Production Report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-I/part-50/subpart-D/section-50.30
- **30 CFR 46.9 — Records of training.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-H/part-46/section-46.9
- **30 CFR 56.12008 — Insulation and fittings for power wires and cables.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-K/section-56.12008
- **30 CFR 56.9300 — Berms or guardrails.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-H/section-56.9300
- **30 CFR 56.14107 — Moving machine parts.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-K/part-56/subpart-M/section-56.14107
- **30 CFR 41.20 — Legal identity report.** (1 retained recent row) — https://www.ecfr.gov/current/title-30/chapter-I/subchapter-G/part-41/subpart-C/section-41.20

## Source coverage

- **Addresses of Record:** 1 rows; 2019-09-03 through 2019-09-03; source ID `msha-addresses`
- **Assessed Violations:** 11 rows; 2000-05-03 through 2021-06-09; source ID `msha-assessed-violations`
- **Civil Penalty Dockets and Decisions:** 1 rows; 2014-05-14 through 2014-05-14; source ID `msha-civil-penalty-dockets-decisions`
- **Conferences:** 1 rows; 2013-09-10 through 2013-09-10; source ID `msha-conferences`
- **Contested Violations:** 1 rows; 2013-06-25 through 2013-06-25; source ID `msha-contested-violations`
- **Controller and Operator History:** 2 rows; 1950-01-01 through 1998-04-28; source ID `msha-controller-operator-history`
- **Inspections:** 27 rows; 2000-05-03 through 2021-06-09; source ID `msha-inspections`
- **Mine Employment and Production — Quarterly:** 61 rows; unknown through unknown; source ID `msha-mine-production-quarterly`
- **Mine Employment and Production — Yearly:** 14 rows; unknown through unknown; source ID `msha-mine-production-yearly`
- **Mines:** 1 rows; unknown through unknown; source ID `msha-mines`
- **Violations:** 11 rows; 2000-05-03 through 2021-06-09; source ID `msha-violations`

## Caveats

- This is public-record decision support, not legal advice or an official MSHA record.
- Missing data can indicate no event, publication delay, an unresolved identity, or inapplicability.
- Contractor production data is entity-level and is not attributed to this mine.

## Alternate representations

- HTML: `/mines/spread-4-1100012`
- JSON: `/api/v1/mines/spread-4-1100012`
- Silica records, units, sample status and quarterly means: `/api/v1/mines/1100012/silica` (snapshot year by default; `?year=all` for history; `&format=csv` for all matching rows)
- Relationship JSON: `/api/v1/mines/1100012/relationships`
- MCP resource: `mine://1100012/assessment`
- Complete Title 30 corpus: `/data/title30-sections.json`